Urbanization
Urbanization refers to a process in which an increasing proportion of entire population lives in cities and the suburbs of cities, this phenomenon has been closely connected with industrialization .
By the end of this decade, more than half of the world’s population will live in cities making humanity a predominantly urban species for the first time in Its history .
When more and more inanimate sources of energy were used in to enhance human productivity .surpluses increased economical fields
Such as industry. Then the larger and larger proportions of population could live in cities.